The Encore NZ6R Nancy Zeltsman "Articulate Bass" mallets are a very rich bass mallet for general playing, with a bit more articulation than the NZ7. I use this as my bass mallet about 75% of the time. Rattan Handles.
 
One unique characteristic of my line is that the oval-shape of the mallet head is horizontal rather than vertical. I imagine (and maybe it's true) that the width of the mallet activates more of the vertical grains of wood in every bar-thus contributing to a richer tone. Everything about the construction of my line of mallets-from the cores, to the latex, to the type of yarn-is aimed at helping you to produce a fundamental-rich tone.
 
- Nancy Zeltsman